After the voice came out, Tianqi immediately recognized that it was Zhao Lao's voice, and then hurriedly said: "Zhao Lao, it's me, please remove this mechanism." Pen "Fun" Pavilion www.biquge.info"

Tianqi said to the top of the wall, now Tianqi calmed down and found that those arrows were definitely things like mechanisms, because arrows of such power were definitely not something that ordinary people could shoot, and the realm of people who could shoot arrows of such power definitely exceeded the level of the peak, and the most important thing was that these arrows seemed to have eyes.

"Wait a minute. After Zhao Lao finished speaking, calm was restored again within the wall,

After a while, Tianqi felt the wall in front of him suddenly shake, and then found that a section of the wall not far from him began to slowly descend, and finally, a two-meter-square doorway appeared on top of the wall.

The stone door opened, Zhao Lao walked out of it, and Tianqi hurriedly walked in front of Zhao Lao, and asked curiously, "Zhao Lao, what is this?"

"It's a kind of trap I've set up, and I have to go through some special methods to open it, you see. After Qian Lao finished speaking, he walked to the side of the stone gate, and then knocked on a bluestone on the mountain a few times.

Then, in Tianqi's surprised gaze, the piece of bluestone that had been knocked by Zhao Lao actually fell down so slowly, revealing a square hole that was not too big and a foot in size.

"If you want to open this stone door from the outside, you must know the arrangement of the stone pillars inside. Zhao Lao pointed to the square hole and said.

"Stone pillar, law?!" Tianqi looked into the square hole in the direction of Qian Lao's finger.

After Tianqi saw the situation inside the square hole, his whole body seemed to be electrocuted, and he stood in place in a daze.

"Hey, what's wrong with you, what the hell?" Zhou De rarely saw Tianqi's expression, and said suspiciously.

Tianqi finally came back to his senses from that state at this time, and did not speak, raising his hand and pointing to the square hole.

"What the hell is it?" Zhou De muttered as he walked over to Tianqi's side, and then looked at Fang Kong.

When Zhou De also saw the situation in the square hole, he said directly: "Damn......! This ......"

Zhou De trembled his arm and pointed at Fang Kongnei, but he didn't say anything for a long time.

After a while, Zhou Decai said to Tianqi with a ghost-like expression: "Don't tell me this thing is called a combination lock!"

Tianqi smiled bitterly, and didn't know how to answer, because simple things in everything are indeed weird enough.

In fact, the things in the square hole are not very much, there are only a few small stone pillars protruding from it, but to Tianqi and Zhou De's surprise, on the top of these small stone pillars, there are nine numbers written, one, two, three, four, five, six, seven, eight and nine, these numbers are combined with these stone pillars, like a password lock in real life.

"This thing is called the Tianji Lock, which I researched in the early years, and I have never used it, and now it is used here. Elder Zhao explained on the side.

"Heavenly Lock...... Tianqi muttered, the name gave him a hint of familiarity, but for a moment he couldn't remember where it was.

"This heavenly lock is the key to this gate, you have to know the combination of these numbers to open this gate as well, if you make a mistake in a row, it will directly trigger the mechanism, just like those arrows on the wall. Zhao Lao continued.

After hearing this, Tianqi couldn't help but leave a few drops of sweat behind his back, he had personally learned the strength of those arrows, and Tianqi could still roll down on the outer wall, but if it was here, it was estimated that he could only dig a hole to dodge, but would those arrows give him time to dig a hole? The answer is definitely no.

"Old Zhao, what's the matter with those arrows?" Tianqi asked curiously, Tianqi was still quite interested in these mechanisms and other things.

"That's simpler, those arrows are shot from a special crossbow, and although they are not large, their power is almost equal to the full force of the pinnacle of achievement. Zhao Lao said with a smile, and it could be seen from Zhao Lao's eyes that he was quite satisfied with his crossbow.

"I've already learned the power of this arrow, what I want to ask is how can it judge my position, just now it will shoot wherever I hid?" Tianqi said suspiciously.

"This is actually not complicated, these crossbows are actually excited by energy, and these energy are provided by a special ore, this ore is very special, they are like magnets, but what attracts them is not the magnet, but the human body, so it can emit the ability according to the position of the human body, so as to activate the crossbow and fire arrows. ”

"Infrared induction?!" When Zhao Lao said this, Zhou De suddenly popped out of his mouth.

"Infrared induction, what is that?" said Zhao Lao suspiciously.

"Old Zhao, you don't have to worry about him, he is sick. Tianqi said.

"Oh......" Zhao Lao nodded slightly, and even glanced at Zhou De with deep meaning, as if he believed Tianqi's words.

"You're sick!" Zhou De retorted.

"You be quiet and let Elder Zhao finish his words. Tianqi also ignored Zhou De and jumped away from the topic directly.

"When they attacked the garrison that day, I suddenly had this idea, although it is okay to lead them into the wall and kill, but there is a certain risk, like on the last day, those people use their body to jump over the wall and go directly to the boundary stone, in that case, the passage will lose its meaning, so I came up with this method, directly treat them outside the wall. Zhao Lao patiently explained.

"Then why don't you just install this thing on this wall, so that the enemy can't even get close to the wall?" Zhou De asked with a question, he wanted to find an explanation for his intelligence.

"Well, in that case, the enemy can't get close to the wall, but it's not just the enemy who can't get close to the wall, but even we can't get close. Zhao Lao looked at Zhou De with the same eyes again.

"This ...... That ......" Zhou De, who has always been very eloquent, didn't know what to say after listening to it.

Tianqi almost laughed out loud after seeing this situation on the side, forced a smile, patted Zhou De's shoulder and said, "Okay, let's take it in a while, the doctor said, the medicine can't be stopped." ”

"You...... You...... You ......" After Zhou De listened, his whole body began to tremble again.